Greycliff, MT Weather & Growing Conditions
This Afternoon
52°F
Sunny
Sunny. High near 52, with temperatures falling to around 46 in the afternoon. South southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Sunny | 5 mph SSE | 0% |
| Tonight | 29°F | Mostly Clear | 5 mph SSW | 0% |
| Wednesday | 54°F | Mostly Sunny | 5 mph WNW | 0% |
| Wednesday Night | 30°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 57°F | Mostly Sunny | 5 to 8 mph W | 3% |
| Thursday Night | 32°F | Partly Cloudy | 5 to 13 mph W | 3% |
| Friday | 57°F | Sunny | 8 to 13 mph WSW | 4% |
| Friday Night | 36°F | Partly Cloudy | 8 to 17 mph WSW | 4% |
| Saturday | 60°F | Sunny | 5 to 16 mph WSW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Sunday | 66°F | Mostly Sunny | 8 mph WSW | 0% |
| Sunday Night | 37°F | Partly Cloudy | 5 to 12 mph WSW | 0% |
| Monday | 58°F | Mostly Sunny | 5 mph SSW | 1% |
| Monday Night | 36°F | Partly Cloudy | 6 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greycliff, MT
Last spring frost
May 14
First fall frost
Sep 26
Growing season
133 days
Hardiness zone
5a
Explore more for Greycliff, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Big Timber, Mt (12.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.